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/* ISC license. */
#include <string.h>
#include <skalibs/sgetopt.h>
#include <skalibs/strerr.h>
#include <skalibs/stralloc.h>
#include <skalibs/genalloc.h>
#include <skalibs/env.h>
#include <execline/execline.h>
#include "exlsn.h"
int exlsn_importas (int argc, char const **argv, char const *const *envp, exlsn_t *info)
{
eltransforminfo_t si = ELTRANSFORMINFO_ZERO ;
subgetopt localopt = SUBGETOPT_ZERO ;
elsubst_t blah ;
char const *defaultval = 0 ;
char const *x ;
unsigned int ivar = 1 ;
int insist = 0 ;
int unexport = 0 ;
blah.var = info->vars.len ;
blah.value = info->values.len ;
for (;;)
{
int opt = subgetopt_r(argc, argv, "SiuD:NnsCcd:", &localopt) ;
if (opt < 0) break ;
switch (opt)
{
case 'S' : ivar = 0 ; break ;
case 'i' : insist = 1 ; break ;
case 'u' : unexport = 1 ; break ;
case 'D' : defaultval = localopt.arg ; break ;
case 'N' : si.chomp = 0 ; break ;
case 'n' : si.chomp = 1 ; break ;
case 's' : si.split = 1 ; break ;
case 'C' : si.crunch = 1 ; break ;
case 'c' : si.crunch = 0 ; break ;
case 'd' : si.delim = localopt.arg ; break ;
default : return -3 ;
}
}
argc -= localopt.ind ; argv += localopt.ind ;
if (argc < 1 + ivar) return -3 ;
if (!*argv[0] || el_vardupl(argv[0], info->vars.s, info->vars.len)) return -2 ;
if (!stralloc_catb(&info->vars, argv[0], strlen(argv[0]) + 1)) return -1 ;
x = env_get2(envp, argv[ivar]) ;
if (!x)
{
if (insist) strerr_dienotset(100, argv[ivar]) ;
x = defaultval ;
}
else if (unexport)
{
if (!stralloc_catb(&info->modifs, argv[ivar], strlen(argv[ivar]) + 1)) goto err ;
}
if (!x) blah.n = 0 ;
else
{
int r ;
if (!stralloc_cats(&info->values, x)) goto err ;
r = el_transform(&info->values, blah.value, &si) ;
if (r < 0) goto err ;
blah.n = r ;
}
if (!genalloc_append(elsubst_t, &info->data, &blah)) goto err ;
return localopt.ind + 1 + ivar ;
err:
info->vars.len = blah.var ;
info->values.len = blah.value ;
return -1 ;
}
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